Insole.



F. R. KEITH.

INSOLE.

APPLICATION FILED APR. n. 19:8

1 ,272.,966, Patented July 16, 1918.

Fig.1.

lnvenfor. Fredev'acK RKe-il'h b WK rannnmcx n. KEITH, or a ma,nassscnusnars.

INSOLE.

Specification ofietters Eatent.

Patented ma ref, 1918.

Application filed April 11, 1918. Serial 1'30. 227,965.

formed from a strip or tape that is sewed to the body member adjacentthe. edge thereof, and the object of the invention is to provide a novelinsole of this type which can be expeditiously and inexpensivelymanufactured and which has various other advan:

'tages, all as will be more fully hereinafter set forth. In" order togive an understanding of my invention, I have illustrated in thedrawings a selected embodiment thereof which will now be described,afterwhich the novel features will be pointed out in the appended claim.I

' Figure 1 is a perspective view of an insole embodying my invention;

Fig. 2 is an enlarged sectional perspective view of said insole;

Fig. 3 shows the strip or tape from which the inseam-receiving rib isformed.

Fig. 4 shows the strip or tape folded.

As stated above, my present invention relates to that type of insole inwhich the inseam-receivin rib is formed from a strip or tape of fabricsewed to the body member.- Insoles of this type have the advantage thatthe body member can be formed of relatively inexpensive material. In aninsole constructed for use in welt boots or shoes, it is important thatthe inseam-receivin rib should have suficient strength to ho d theinseam stitches because the strength and lastin qualities of the shoedependlar ely on t e strength with which the upper and welt are sewed tothe insole. The body of the insole, however, is subjected to relativelylittle strain and hence can be made of inexpensive material, providedthe inseamreceiving rib can be made with proper strength. The use of thetape of textile fabric for the inseam-receiving rib provides thenecessary strength, regardless of the character of the body of theinsole, and hence an insole of this type can e made from inexpensivematerial.

In order to make a satisfactory insole of this type, it is importantthat the tape should be sewed at the proper distance from the marginaledge of the body, for if the tape is attached to the body at irregulardistances,

the inseam-receiving rib will be distorted.

It is also desirable that the sewing or attaching of the strip to themarginal portion of the insole should not give undue thickness to suchmarginal portion. My improved invention accomplishes both of theseobjects, and thus produces'a superior insole.

The body of the insole is indicated at l and may be made of any suitablematerial, but will preferably be made of some relatively-inexpensivematerial, such as leatherboard, thin leather, etc, The inseam-receivingrib is formed from a tape-like strip 2 of textile fabric, preferablyduck fabric, which is sewed to the body 1 near the marginal portionthereof. This strip is indicated at 3 and it is provided on one sidewith a coating 4 of adhesive material. The tape or strip is then foldedlongitudinally with the coated side on the interior of the folded strip.The coating 4 thus causes the two plies of the folded strip to adheretogether. The folded strip is sewed to the marginal portion of the body1 by stitches 5 which pass through the strip adjacent the edges 6 sothat the folded edge stands upwardly from the body 1 thereby to form theinseamreceiving rib, as indicated in Fig. 2.

In order to make a proper insole, it is im portant that the folded tapeor strip 3 should be sewed to the marginal. portion of the body 1 at theproper distance from the edge thereof, and in order to form apositioning guide for said folded strip as it is being sewed, I proposeto channel the body 1 at its peripheral edge, and then to turn up thelip 7 therefrom. This channel will be cut at the desired depth at alloints around the insole so that when the lip is turned up itwillconstitute a positioning rib or lip against which the folded strip 2may be placed. Since this rib or strip is at the proper distance fromthe edge of the body portion at all points thereof, the folded strip 2will be properly positioned at all points around the insole if it restsagainst the upturned lip 7 Hence in attaching the folded strip or tapeto the insole it is only necessary to usethe upturned lip 7 as a postioning guidefor positioning sald tape or strip as it is sewed to theinsole,

In sewing the strip to the body 1 the plies or layers of the strip Wherethe stitches 5 extend therethrough increase the thickness of themarginal portion of the insole, but with the construction herein shownwherein the marginal portion 8 is reduced in thick ness by thechanneling operation and the turning up of the lip 7, the totalthickness which results from the combined thickness of the feather edge8 and the two plies of the folded strip doesnot produce an unduethickness to the insole. The channeling of the insole and turning up ofthe lip,'therefore, accomplishes two objects. In the first place, itprovides a positioning lip or rib for assisting in properly positioningthe folded strip 2, and in the second place, it provides a reducedthickness to the feather edge 8 so that when the folded strip 2 is sewedthereto the combined thickness of the feather edge and folded strip willnot pro- 7 duce an unduly thick insole.

lhere is also a decided advantage in making the inseam-receiving ribfrom a strip in which the folded edge constitutes the top edge of therib because this folded edge will hold the inseam stitches much morefirmly than a raw edge of fabric would. Further, the provision of thepositioning lip 7 facilitates the sewing of the folded strip to the bodybecause it acts as a guide for the strip during the sewing operation sothat the op eratorcan rapidly sew the strips to the insole bodies withthe certainty that the folded strips will always be properly positionedrelative to the edge of the insole. i

I claim: V

An insole comprising a body portion provided near its marginal edge withan upturned positioning lip and a folded tape encircling said lip andpositioned thereby, said tape being sewed to the body'portion eXtc-'rior to the lip, that part ofthe ody portion which is enterior'rto thelip being thinner than the central part of said body portion.

7 In testimony whereof, I ha resigned my name to this specification. v

' FREDERICK R. KEITH.

